Air conditioner



FIG. 1 is a first perspective view of the front, bottom and right side view of an air conditioner showing my new design;

FIG. 2 is a second perspective view of the front, top and left side view thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a rear view thereof;

FIG. 5 is a left side view thereof;

FIG. 6 is a right side view thereof;

FIG. 7 is a top view thereof;

FIG. 8 is a bottom view thereof; and,

FIG. 9 is a perspective view showing an operating state thereof. 

CLAIM The ornamental design for an air conditioner, as shown and described. 